Enzyme-catalyzed decomposition of dibenzoyl peroxide in organic solvents.

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Horozova E, Dimcheva N, Jordanova Z

Enzyme-catalyzed decomposition of dibenzoyl peroxide in organic solvents.

Z Naturforsch C J Biosci. 2001 Jul-Aug;56(7-8):553-8. doi: 10.1515/znc-2001-7-813.

PubMed ID

11531089 [ View in PubMed

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Abstract

Catalytic activity of catalase (CAT, EC 1.11.1.6), immobilized on carbon black NORIT and soot PM-100, with respect to decomposition of dibenzoyl peroxide (BPO) in non-aqueous media (acetonitrile and tetrachloromethane), was investigated with a quantitative UV-spectrophotometrical approach. Progress of the above reaction was controlled by selected kinetic parameters: the apparent Michaelis constant (Km(app)), the specific rate constant (k(sp)), the activation energy (Ea), the maximum reaction rate (Vmax), and the Arrhenius' pre-exponential factor (Z0). Conclusions on the tentative mechanism of the catalytic process observed were drawn from the calculated values of the Gibbs energy of activation (deltaG*), the enthalpy of activation (deltaH*), and entropy of activation (deltaS*).

DrugBank Data that Cites this Article

Drug Enzymes

Drug	Enzyme	Kind	Organism	Pharmacological Action	Actions
Benzoyl peroxide	Catalase	Protein	Humans	Unknown	Substrate	Details